A Comprehensive Guide to Data Modeling

An easy-to-understand example of data modeling is a library application. In a library, there are two main entities: the books and the book users. Consequently, the conceptual model can be based on workflows such as borrowing books or adding a penalty if books are not returned on time. Next, a logical model with the attributes and relationships between books and users such as book details name, author), user details name, contact), and borrowing details date borrowed, number of books) can be created. Finally, a physical model indicating how to store the data can be created. For example, should the data be split into more collections tables) linking them together or should the data be placed in a few collections tables), embedding information that needs to be accessed together? Review the complete example to learn more: What is an example of a data model?